1. Styrene acrylic emulsion is a kind of intermediate products, usually added to the use of other additives, some components are easy to react with other chemical substances and produce foam; These foams will reduce the heat resistance, water resistance, oil resistance and other properties of styrene - acrylic emulsion, resulting in quality problems.

2. In the production and use of styrene acrylic emulsion, due to the stirring operation of the equipment will be involved in a large amount of air, resulting in a large number of foam phenomenon; A large amount of foam can spill over the production system, causing pollution to the surrounding environment.

3. Affected by external environmental factors, the chemical substances in styrene and acrylic emulsion are more active under high temperature conditions, which is easy to produce foam; Thus affect the appearance of styrene - acrylic emulsion, make the surface of styrene - acrylic emulsion products uneven, aesthetic decline.

4. If the operator adds excessive styrene acrylic emulsion to the product, or does not use it in proportion, it will also lead to foam; Too much foam will slow down the production schedule, reduce production efficiency, and lead to the increase of production costs.